Patents by Inventor Dave E. Haymond

Dave E. Haymond has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Gumball machine
    Patent number: 5452822
    Abstract: A gumball machine attracts and entertains users by enabling a user, after he purchases a gumball from the machine, to visually observe the gumball as it travels from the storage area of the gumball machine to the dispenser where the user removes the gumball from the machine.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: September 26, 1995
    Inventor: Dave E. Haymond